
The Cloudflare network now spans 275 cities
Today, we are announcing the addition of 4 new cities, bringing our network to 275 cities globally.
The best problem-solving writing in software engineering — databases, performance, security, frontend and distributed systems, in one feed.

Today, we are announcing the addition of 4 new cities, bringing our network to 275 cities globally.

Thanks to the efforts of the Elixir community, GitHub supports code navigation for Elixir repositories. Read how favorite language can add this support too!


React Native Skia, an open source project, provides a set of powerful 2D drawing primitives that are consistent across iOS, Android, and the Web.

Building load test infrastructure is tricky and poses many questions. How can we identify performance regressions in newly deployed builds, given the overhead of spinning up test clients? To gather the most representative results, should we load test at our peak hours or when there’s a lull? How do we incentivize engineers to invest time…

Performance needs to be built in starting at the code level, and user-centric metrics like time to interactive (TTI), total blocking time (TBT), and first input delay (FID) help you gauge how fast a website is. But modern web pages are heavy and ever-growing in size Introducing Partytown, a lightweight open-source solution that reduces execution delays due to third-party JavaScript by offloading t

A round-up of updates and improvements to Figma and FigJam

These days software is subject to an ever-changing threat landscape. Check out the many ways you can keep your projects secure on GitHub today.

In this article, Nathan Smith explains how to create modal dialog windows with rich interaction that will only require authoring HTML in order to be used. They are based on Web Components that are currently supported by every major browser.

Over 10,000 platforms use Stripe Connect to power six million businesses. We look back at a decade of growth and ahead to the future of embedded finance.

Earlier this month, Cloudflare’s systems automatically detected and mitigated a 15.3 million request-per-second (rps) DDoS attack — one of the largest HTTPS DDoS attacks on record

A while ago, Geoff wrote an article about a cool hover effect. The effect relies on a combination of CSS pseudo-elements, transforms, and transitions. A lot


Data science is a balancing act between math, science, art, and communication. In this article, learn how to tell an effective data story illustrated with examples from Shopify.

We should be able to measure how well a particular design solves a particular problem. Let’s explore design KPIs that capture user’s experience, how to measure them and how to keep both users and business stakeholders happy, over time. In this [series of articles](https://www.smashingmagazine.com/category/design-patterns/), we highlight design patterns and techniques to design better interfaces. Y

Starting today, we are thrilled to announce that you can start building many segregated virtual private networks over Cloudflare Zero Trust, beginning with virtualized connectivity for the connectors Cloudflare WARP and Cloudflare Tunnel

We blogged previously about some trends concerning the first round of the 2022 French presidential election, held on April 10. Here we take a look at the run-off election this Sunday, April 24, that ended up re-electing Emmanuel Macron as President of France

Marcelo Affonso (VP of Infrastructure Operations) and Rebecca Weekly (VP of Hardware Systems) recently joined our team. Here they share their journey to Cloudflare, what motivated them to join us, and what they are most excited about

Use MobilityDB to analyze historical air traffic data. A quick-start guide to dealing with spatio-temporal data together with PostGIS

The things I do to make Twitter useful and avoid the time-traps

GitHub Desktop 3.0 brings better integration with your GitHub Pull Requests. You can now receive real time notifications and review the status of your check runs for your pull request.

New zine: How DNS Works!

At Meta, our internal data tools are the main channel from our data scientists to our production engineers. As such, it’s important for us to empower our scientists and engineers not only to use data to make decisions, but also to do so in a secure and compliant way. We’ve developed SQL Notebooks, a new […]

By Laura Nolan, with contributions from Glen D. Sanford, Jamie Scheinblum, and Chris Sullivan. Assessing conditions Slack experienced a major incident on February 22 this year, during which time many users were unable to connect to Slack, including the author — which certainly made my role as Incident Commander more challenging! This incident was a…